KOSS BT 221i Wireless on-ear headphones

KOSS BT 221i Wireless on-ear headphones offer premium wireless sound quality combined with a comfortable and portable design. - Bluetooth 4.1 for reliable wireless connectivity - Cushioned on-ear pads provide a comfortable fit for extended listening - Built-in microphone and remote for effortless call handling and music control - Up to 14 hours of battery life for prolonged use - Foldable design enhances portability and easy storage Compatible with all Bluetooth-enabled devices including smartphones, tablets, and laptops. In the box: KOSS BT 221i wireless on-ear headphones, USB charging cable, detachable audio cable for wired use, carrying pouch, user manual. Technical specifications: Bluetooth version 4.1, wireless range up to 10 meters, battery life up to 14 hours, charging time approximately 3 hours, frequency response 20 Hz – 20 kHz, impedance 32 Ω.